Finite Element Simulations on Erosion and Crack Propagation in Thermal Barrier Coatings

Z. S. Ma; L. H. Fu; L. Yang; Y. C. Zhou; C. Lu

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Finite Element Simulations on Erosion and Crack Propagation in Thermal Barrier Coatings

机译：热障涂层冲蚀和裂纹扩展的有限元模拟

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Erosion of thermal barrier coatings occurs when atmospheric or carbon particles from the combustion chamber are ingested into aviation turbine engines. To understand the influence of erosion on the service life of thermal barrier coatings, we introduce the erosion and crack propagation models, and then by using finite element simulations, determine the relationship between the penetrating depth, the maximum principle stress and impingement variables such as velocity and angle. It is shown that cracks nucleate and extend during the erosion process and the length of a crack increases with the increase of the particle velocity and impact angle.

机译：当来自燃烧室的大气或碳颗粒被吸入航空涡轮发动机时，就会发生隔热涂层的腐蚀。为了了解腐蚀对隔热涂层使用寿命的影响，我们介绍了腐蚀和裂纹扩展模型，然后通过有限元模拟，确定渗透深度，最大主应力与冲击变量（例如速度）之间的关系。和角度。结果表明，在腐蚀过程中，裂纹成核并扩展，裂纹的长度随着粒子速度和冲击角的增加而增加。

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《High temperature materials and processes》 |2015年第4期|共7页
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Z. S. Ma; L. H. Fu; L. Yang; Y. C. Zhou; C. Lu;
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中图分类工程基础科学;
关键词
thermal barrier coatingserosioncrack propagationfinite element simulation;

机译：热障涂层裂纹扩展有限元模拟;

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1. Finite Element Simulations on Erosion and Crack Propagation in Thermal Barrier Coatings [J] . Z. S. Ma, L. H. Fu, L. Yang, High temperature materials and processes . 2015,第4期

机译：热障涂层中冲蚀和裂纹扩展的有限元模拟
2. Finite element simulation of interface cracks in thermal barrier coatings [J] . B?ker M. Computational Materials Science . 2012,第Null期

机译：隔热涂层界面裂纹的有限元模拟
3. Finite element simulation of stresses in a plasma-sprayed thermal barrier coating with a crack at the TGO/bond-coat interface [J] . Skalka P., Slamecka K., Pokluda J., Surface & Coatings Technology . 2018,第期

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4. Finite Element Simulations of Turbine Blades with Thermal Barrier Coatings Subjected to Cyclic Thermal Loading [C] . Q.X.LIU, W.G.MAO, L.YANG, The Third International Conference on Mechanical Engineering and Mechanics(第三届国际机械工程与力学会议）论文集 . 2009

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机译：使用基于表面的内聚相互作用和扩展有限元方法模拟空气等离子喷涂热障涂层由于界面和整体裂纹而导致的失效

Finite Element Simulations on Erosion and Crack Propagation in Thermal Barrier Coatings

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